Dental caries in relation to oral osmosis / by Ragnar Eckermann.

  • Eckermann, Ragnar.
Date:
1919
Catalogue details

Licence: Public Domain Mark

Credit: Dental caries in relation to oral osmosis / by Ragnar Eckermann. Source: Wellcome Collection.

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    221 5. That the walls of the pulp vessels are very thin and the other tissues of the pulp are very delicate. 6. Some _ histologists — Docent Fleischmann, of Vienna, and one of his assistants — have in a certain case found erythrocytes in the tubuli of a decalcified tooth haréened with formaline.! And it is evident that if red corpuscles are able to enter the narrow tubuli it must be much easier for plasm to go up, as the tubules are narrower than the erythrocytes (2—4 yp and 8 yp respectively). 7. That a tooth at eruption, especially, if this takes place too early, will have the pulp organ in active and close connection with the inside of the enamel. Thus, the author’s claim that plasm from the central vessels of the tooth can, under influence of physical processes, rise to the belt of the enamel, is thus free from objections. The Properties of the Carious Dentine. The reader’s attention has already been directed to the qualities of carious matter, i. e., the fresh, elastic, carious dentine in cases of living pulp, not the top, rotten, quite soft or decayed layer. These qualities are: — | 1. It is as a rule odourless in teeth with a living pulp. PARSE EST more resistant to acids than the fresh dental tissue (according to the author). 3. It is more resistant to stains than the fresh dental tissue (according to CausH ? inter alia). 4. It contains iron (according to MILLER, Coun 3 and the author). 5. It contains blood matter (according to the author and his assistants). 1 Personal communication, Vienna 1913. 2, CausH, Dental Record 2. 1916. 57.